Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kee7 win in 5 half-moves
3 Kf7 win in 5 half-moves
4 Kf8 win in 9 half-moves
5 Ra8 win in 13 half-moves
6 Kc6 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kc8 loss in 2 half-moves
9 Kd6 loss in 2 half-moves
10 Kde7 loss in 2 half-moves
11 Ke6 loss in 2 half-moves
12 Rc8 loss in 2 half-moves